Metal-frame window.



O. H. IMAN.

METAL FRAME WINDOW.

APPLIOATION FILED MAY 11, 1911.

Patented Feb. 10, i914.

3 SHEETS-SHEET 1.

Patented Feb. 10, 1914.

3 SHEETS-SHEET 2.

nor

m T omqg- 0. H. IMAN.

METAL FRAME WINDOW.

APPLIUATION FILED 11u11, 1911.

0. H. lMAN.

METAL FRAME WINDOW.

APPLICATION FILED MMU, 19114 3 SHEETS-SHEET 3.

META-gw Imffm o? fr mfm /u/ l a 97, MLN Q7@ QM, v

oa gni. man, or cnrcneo, rumors, nssreivon, Wesson-sonne Wmnow or New YORK.

Losetas.

Specification of Letters Patent.

NT muon.

BY MESNE ASSIGNMENTS, TO

Patented Feb. 1o, 1914.

Application inea Mey 11, 15911. serial No. 626,400.

To all whom it may iconceim:

Be it known that I, ORLA H. IMAN, a citizen of the United States, residing at Chicago, in the county ofv Cook and State of' t Illinois, have invented certain new and useful lmprovements in Metal-Frame VVindows, of which the following is a specification.

This invention relates to improvements in metal frame Windows, and Vhas reference more particularly to improvements in that type of window which has come to be known'to the trade as the tenestra type.

A leading object of the invention is to provide a construction` adapted for the use, interchangeably, of a lined. panel or a pivoted panel without necessitating any change in the window structure itseli in order to atleet the substitution of one for the other. lt sometimes happens that where *windows ot this type employing; lined or non-opening sash or panels, have been installed in liaotories, complaint is made that they do not a'fiord opportunity for ventilation rough. the window opening, and hence it is desirable to render such windows capable of easy moditication'in such a way as to `rovide for the employment of an operab e sash or panel therein, and this my present invention accomplishes.

Another object of the invention is to provide anew and usefulstructureof pivoted sash which may be readily substituted for' one or more of the glass panels in such a window without involving any alteration in the structure of the latter.

lStill another object of the invention is to equip such'an openable sash,\vith`a suitable -weather-stripping provision that shall 've to the movable sash when in closed position, substa'tiallfthe' character and eli'e'ct of a permanent sash or panel, so far as protec-` tion against the outside elements is conf rerned.

`@ther minor objects and advantages of the invention willv be apparent from the following description, taken in connection with the accompanying drawings, in Which- Figure l is an inside elevation of a window. 'brokenoil at its lower end, constructed in 'accordance with my .ir ention. l? 0 an enlarged cross-scctional detail ifA @weer ing; i. i f

ical section, broken the line 37m-B "a building.

a plurality of glass panels,

larged in ner side elevation of the pivoted sash and its mounting', broken oil" at one side and' between its ends. Fig. 5 is an enlarged detail in perspective, showing the manner of pivoting the sash to the parts by which it is removably mounted in the frame. Fig. 6 is a ,perspective elevation of the upper combuied attaching device and weather-strip.

lFig'. 7 is a similar perspective of one of the Stiles ot' the sash. Fig. 8 is a similar view on the lower combined attaching device and weather-strip. Fig. 9. is a perspective elevation of a'connecting strip that unites the two'members shown in Figs. 6 and 8.

Referring tothe drawings, 10 designates the vertical'menlbers and 1l the upper horizontal member uit' a rectangular jambsframe adapted to be permanently set in the wall of These are hollow sheetmetal structures provided on their inner sides with grooves orl channels, such as lla adapted to seat the upper marginal portions ol the glazing. The structure herein shown also includes a hollow sheet-metal central crossbar l2 likewise formed in its upper and lower edges with grooves or channels l2 to receive the marginal portions of the laainny lying directly above and below sai' crossbar, this latter dividing the entire window structure into a pair of upper and lower duplicate sections. The sections thus formed are each subdivided by muntins into and may, of course, be further subdivided if desired,by one or more transor'ns into a. greater number of smaller panels; the number of muntins and transoms employed being optional and immaterial to the structural features involved in the present invention.

For the sake of simplicity of illustration, l have herein shown each of the upper and lower window sections as divided by a pair of muntins 13 into three panels. the stationary glazing Ol each of which is designated by lll. v'lhe muntinsr 13' are of hollow sheet metal construction, and each is a two-partstructure comprising an outer permanent section 153 (Fig. 2) and a similar inner removable section 13". These sections prefer- "ably have substantially the cross-sectional torni illustrated in Fig. Q. andthe outer sections 1 3 are permanently secureda't their upper and lower ends in the end and int mediate cross-bars of the jamb-frame, the inner sections 13b are removablysee at their ends in said cross-bars, for which purpose the latter are provided with openings of the cross-sectional form and dimensions of the muntin-bar 13", through which openings the ends of the latter may be readily inserted and withdrawn, the lower ends of said removable muntin bars 13b, when in operative position, being stepped upon suitable supports indicated at 15 in Figs. 3 and'4.

W'here the muntins between the cross-bars in which they are secured at their ends are of considerable length, it is desirable to provide intermediate connecting devices between the outer and inner bars of each pair, for which purpose I have shown a connecting link 16 ,(Figr2), which is pivoted at 17 between the side walls of the outer muntin bar 13a, and at its free end, extends across between the inner sides of the side walls 131, being provided at its free end with a hole adapted to receive a bolt 18 passed through the side walls of the muntin bar and the hole in the connecting link and secured bya nut.

19. The links 16 are located at any desired point or points along the length of the munj tin bars and serve to tie the latter together between their ends; and when it is desired to remove the inner muntin bar 13b, the bolt 18 is Withdrawn, the link 16 swung to a position in which it lies vertically wholly within the outer muntin bar 13a, the muntin bar 13" is theny raised suiciently to clear its inner end from the lower cross-bar, whereupon its upper end may then be withdrawn from the aperture in the. upper bar. The simple converse of these operations is performed in inserting the removable muntin bar to operative position in the window.

The structure as thus far described is substantially identical with that disclosed and claimed in al copending application filed May 11, 1911, in the names of William D.

Watson and Orla H. Iman, Serial No. 626,410, and no claim to this construction, per se, is made by me herein; although certaln features of this construction are well Aadapted for coperation and combination with those features in which my present invention more particularly resides, and which will next be described.

2O designates a glass panel that is mounted in a sash frame, which latter is adapted to be pivotally mounted in any one of the anels of the window, formed between ad- -Jacent muntins in lieu of a stationary or xed panel such as those shown at 14. The frame of this pivotal sash comprises, as herein shown, a pair of stiles 21 (Fig. 7 o hollow sheet metal and yapproximatelyround in cross-section, each of said' Stiles being formed with integral glass-holding lips 22 on its inner side. The stiles 21 are vconnected at their upper' and lower ends to cross-bars 23, which latter are of thesame form as the stiles 21, forming miter joints with the latter, and preferably connected by internal L-shaped connectors 24. Cooperating with the sash thus formed is a sash holding frame that is preferably so lformed as to have also the character of a weather-strip frame, and is made 'in two (upper and lower) sections: the upper section engaging the outer side of the upper half of the sash and the lower section engaging the inner side of the lower half of the sash when the latter is in closed osition. Each of these sections is, as herein shown, `made up of a plurality of connected Weather-strips, and the two main sections are connected together at their inner or meeting ends, and the entire sash-holding frame thus formed is provided with outer marginal tongues that are adapted to have the same engagement with the grooves of the cross-,bars of the'main frame and with the muntins as the marginal portion of a plain glass panel. A pair of these weatherstrips which coperate with the right-hand stile of the sash are clearly shown in the perspective views, Figs. 6 and 8, in which 25 is the lower strip formed with the bent longitudinal tongue 25a on its outer edge, and 26 is the upper strip formed with a similar bent longitudinal tongue 26a on its outer edge.4 Similar transversely extending strips 27 and 28 are secured to the upper and lower ends of the strips 26 and. 25, respectively, by internal L-shaped connectors lying within the tongued extensions thereof, as clearly shown at 29 in Figs. 3 and 4. I

To the stiles 21 are secured by screws or rivets 30 the upper members Blof hinges, the lower members of which, indicated by 32, are secured by screws .our rivets 33 'to the upper end of the lower section of the sashholding frame, the hinge pivot being shown at 34. The lowerv and upper strips 25 and 26 on each side are, in turn, connected at their meeting ends by straight bar connectors 35 that liewithin and are secured to the tongue extensions 25 and 26a of said members. Fig. 9 shows a detail of the connector bar 35 which extends for about half its length into the upper end of the tongue 259L of the strip 25 and Vfor the remaining half its length into the lower end of the tongue 26 of the strip 26, being secured to said parts by screws or 'rivets indicated at 36 in Fig. 4. From this it will-be seen that the entire sash-holding frame is per! manently connected to the pivoted sash -through the pivot ofthe latter, and that the sash-holding frame comprising the vertical sections 25 and 26 on both sides, the transverse sections 27 and 28 at the upper and lower ends, and the connecting pieces, has a continuous outer marginal tongue that is of substantially the same thickness as the lazin in the panels 14. Hence, assuming t at t e window as originally installed has loaf only fixed glass panels, and the owner or tenant of the building desires more ventilation, this is easily and readily secured by simply taking off the removable muntin bars 13b, taking out the glass panel (which is done by raismg the latter through a slot 1lb, Fig. 3, formed in the upper channel 11 sufliciently to clear its lower edge and then withdrawing its upper edge), inserting in place thereof the pivoted glazed sash with the sash-holding attachment, and then again applying the removable muntin bars which engage and clamp the marginal tongues of the sash-holding frame in the same manner that the margins of the glass were formerly engaged and clamped. By the same operation, a pivoted sash such as I have described originally installed in ya window can be withdrawn and a fixed glass panel substituted therefor, if desired. This capacity of the structure which provides for the ready interchangeability of a fixed and pivoted panel constitutes a very important feature of my present invention, since it not only makes unnecessary the substitution of an entire new 'window when a change is de sired to secure or dispense with ventilation, but it enables such a change to be e fectcd by a very simple and easily effected modification of the original structure. Furthermore. it will be seen that the sash holding' frame in the preferred :form herein shown performs weather-strip functions for the pivoted sash when the latter is closed,l

as well as constituting the direct or immediate supporting frame therefor, to which the sash is directly pivoted, and also carrying the parts which engage the grooves or channels of' the muntins and cross-bars of the window frame.

It will be manifest to those skilled inthe art that the exact forms and relative arrangements of the structural parts herein shown are not ot the essence of the invention, but may be modified to a considerable extent without involving any departure from the principle involved or sacrificing any of the benefits and advantages attained thereby. A

l claiml. ln a metal frame window, the conibination of a hollow sheet metal sash formed on its inner edges withv glass-holding grooves, a containing metal frame formed on its inner edges with grooves of the same width as the grooves of said sash, and a sash-holding frame on and within which said sash is pivotally mounted, said sash-hol .ling

frame having on its outer edges marginal tongues adapted to be held in the grooves of said containing trame, substantially as described.

2. In a metal frame window, the combination with a containing frame grooved on its inner edge, of sash, and a weatherstrip frame formed in upper and lower seetions engaging the outer and inner sides, respectively, ot' said sash, said sash being hinged to the upper. end of said lower weather-strip frame section and said weatherstrip frame sections being formed with hol-y low marginal tongues adapted to be held in the grooves of said containing frame, and connectors for said weather-strip frame sections fitted within and secured to the meeting end portions of the hollow .marginal tongues of the latter, substantially as de scribed.

3. In a metal frame window, the combination with a main frame having cross-bars grooved on their inner sides, the bottom ot the groove of the upper cross-bar being slotted, and a pair of inuntins, each comprising a fixed .lnuntin bar and a removable muntin bar, of a sash, and a sash-holding frame in which said sash is pivotallyA mounted, said sash-holding frame being provided with marginal tongues adapted to enter the grooves of said cross bars of the main frame and to be confined between the fixed and removable muntin bars of said muntins, substantially as described.

ll. In ainetal frame window, the combif nation with a main frame having cross bars grooved on their inner sides, the bottom of' the groove of the upper cross bar being slotted, and a pair of muntins, each comprising a fixed muntin bar and a removable muntin bar, of a sash, and a weather-strip frame formed in upper and lower sections engaging the outer and inner sides, respectively, ot' said sash, said sash being pivotally mounted on the upper end of said lower weather-strip frame section, and said. weather-strip f 'ame sections being connected at their meeting ends and formed with man gnal tongues adapted to enter the grooves of said cross bars of the main frame and to be confined between the fixed and removable inuntin bars ot' said muntins, substantially as described.

ORLA H. IMAN.

Witnesses:

SAMUEL N. POND, DAISY C. THoRsEN.

Elli 

